RFR: 8200105: Remove cyclic dependency between oop.inline.hpp and collectedHeap.inline.hpp (original) (raw)

Kim Barrett kim.barrett at oracle.com
Thu Mar 22 18:44:16 UTC 2018

On Mar 22, 2018, at 12:10 PM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:

Hi all, Please review this patch to remove a cyclic dependency between oop.inline.hpp and collectedHeap.inline.hpp: http://cr.openjdk.java.net/~stefank/8200105/webrev.01/ https://bugs.openjdk.java.net/browse/JDK-8200105 The ground work for this cleanup had already been done with: 8199728: Remove oopDesc::isscavengable What's done in this trivial patch is: 1) Move some debug functions out from the collectedHeap.inline.hpp and into collectedHeap.hpp. 2) Removed collectedHeap.inline.hpp and fixed missing includes to make it compile again. Thanks, StefanK

Very nice cleanup. I assume you will update copyrights.

Looks good.

src/hotspot/share/oops/oop.inline.hpp

I think this file nearly doesn't need to include collectedHeap.hpp at all; not having that dependency would be nice. The only use I see is in an assert in oopDesc::size_given_klass that uses Universe::heap().

Doing anything about this is likely pulling on a lot more string though, so I wouldn't want it added to this change. So file a new RFE if you think eliminating the dependency is worthwhile.

src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp

There seems to be a stray blank line removal after line 186.

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